Finding the Fourth Proportional to 113,417.33, 156,530.81 and 65,038.19

Step by Step Solution

1. Step 1: Write the proportion equation
   113,417.33 : 156,530.81 = 65,038.19 : x
2. Step 2: Convert to fraction form
   113,417.33/156,530.81 = 65,038.19/x
3. Step 3: Cross multiply
   113,417.33x = 156,530.81 × 65,038.19
4. Step 4: Simplify right side
   113,417.33x = 10,180,479,941.58
5. Step 5: Solve for x
   x = 10,180,479,941.58/113,417.33
6. Step 6: Final answer
   x = 89,761.24